Tucking attachment for sewing-machines



(No Model.) 2 sheets-sheet 1.

W. F. KIENTOPF. TUGKING ATTAGEMENT EOE SEWINGr MACHINES.

'. No. 290,065. Patented Deo. 11, 1883.

(No Model.) y I v2 Sheets-Sheet 2.

F. KIENTOFF.

TUGKING ATTACHMENT FOR SEWING MACHINES.

Patented Deo. 11,1883.v

barren [STATES PATENT OFFICE. f t

WJLLIAM r. KIENTOFF, or ENGLEWOOD, ILLINOIS.

' TocKsNe ATTACHMENT FOR SEWING-MACHINES.

SPECIFICATION forming part of Letters Patent No.

290,065, dated December 11, ,1883,

Application filed May 3, 1883. (No model.)

and arrangement of the same, substantially as will be hereinafter more fully set forth.

' In order to enable others skilled in the art to which my invention relates to make and use the same, I will now proceed` lto describe its construction and operation, referring to the accompanying drawings, in which- Figure 1 is a perspective view ofmy invention; Fig.- 2, a cross-section of the same, and Fig. 3 a modification'of the device. Fig. 4 shows the adj usting-nut provided with a pointer registeringV with a series of graduations.

A represents a metal Yplate provided with a slot, a, by which it may be attached by means of a set-screw to the base-plate of a sewingmachine. This plate is formed with a projecting lip, a', .upon its lower inner edge, and upon this lip rests the edge of a smaller plate, B, the nose b of which'projects somewhat in front of the plate A, as shown by Fig. 1,. and

- the two plates are connected and held with their adjoining edges in proper relation with each other by means of a spring-arm, C, which is curved upward and extends. out some distance to form a loop for the free passage of the goods in process of tucking.

Near the rear end of the plate A is a sliding scale or gage, D, formed` with a'slot, d, which passes over a stud, d', on the plate A, and the gage is secured in any desired position by means of a thumb-nut, D. This gage is marked with a suitable number of graduations, by which it may be projected over the inner edge of the plate to any required distance.

Near the forward end of the plate A is also arranged a sliding plate, E, formed with a slot, e', and thumb-nnte? for4 adjusting the slide, and also with studs or projections e3 for guiding it and retaining it in a straight line.

One side of the slide Eis also providedv with a pointer, E', which registers with -a graduated scale upon the plate A. as shown.

Between two lugs or ears, f f, near the for- 55 ward or inner end of the sliding arm E, is hinged aguide-arm, Gr, which extends out over the plate B, and is here widened out to form a pressureplate, G', held down upon the goods by `means of a spring, g, secured to the 6o middle of the hinge-pintle, and providedrwith an arm bearing upon the part G. Beyond this part G the guide-arm is turned sharply upward and then bent back upon itself, as

seen byFigs. l and 2, to forma tuck-guide, 65

G, having its eXtreme llower end turned inward, as seen at g', and the two parts of this spring tuck-guide are held together by means of a stud and thumb-nut, g2.

In operation, the tucker is placed upon the 7o base-plate of a sewing-machine withneedle of the machine at apoint opposite the end of the slidingfscale orgage D. This slide is then loosened and shoved forward to the prope'r distance corresponding with the width of tuck, 7 5

only used in setting the device. The goods are then placed in the tucker with the plate B inside the fold or crease of the cloth, and

the goods lying below between the plate B and 8 5 the lip Vof the plate A, and above being folded back and held down by the pressure-plate G', which may be raised and held out of the way when inserting the goods in the tueker. The

cloth is then ru'n through the machine and the 9o :first tuck formed. For the second and each succeeding tuck no creasing is necessary, but ther-goods are inserted as before, but with the tuck last formed raised and entered between the lower ends of the tuck-guide, as seen in 95 liar position in which it is held by the adjustroo able guides. The long edges of the plates A and B serve to guide the work straight to the The gage D 8O is then set back to its original position, being needle, and the device may be used for hemming in the manner already described for forming the first tuck.

The ends of the spring tuckguide G2 may be easily set to or from each other to aecommodate themselves to different thickness of goods by means of the set-nut and stud described.

It is obvious that if desired the spring-arm C, instead of being twisted around the sewingmachine arm, as shown in Fig. 1, may be made as seen in Fig. 3, which represents the arm entirely in front of the needle, and formed with a slot, S, from which depends an adjustable arm carrying the tucleguide and pressureplate. These are made in the form already described, and the adjusting-nut R is provided with a pointer, P, registering with a series of graduations, which is shown in Fig. 4, upon the Springarm, by which the depth of the tuck is regulated, instead of by the device shown in Fig. l. In either case the springarm may be either permanently secured to the main base of the device or slotted and secured by an adjusting-screw, as desired. This latter arrangement admits of separating the two portions of the base-plate, which is an advantage in tucking a skirt or dress.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a tueker for sewing-machines, the combination, with two plates placed side by side, and connected by an arched spring-arm, of an adjustable spring-actuated pressure plate and guide adapted to fold the goods and guide it smoothly and evenly to the needle, substantially as and for the purpose set forth.

2. In a tucker for sewing-machines, the plate A, slotted for attachment to the machine, and 4o formed with the lip a', in combination with the auxiliary plate B, secured to the former by a spring-arm, C, and formed with a proj ectin g nose for aidingthe insertion ofthe goods, substantially as and for the purpose set forth. 45

3. In a tucker forsewing-machines, the combination of a tuck-guide formed with springjaws, between which a finished tuck may be guided, and provided with an adjusting-screw for said guides, the folding edges ofthe tucker, 5o and means for adjusting the spring-jaws in relation to the folding edges of the tucker, substantially as shown and described.

4. In a tucker for sewing-machines, the

plates A and B, connected by a spring-arm, 55 C, in combination with the slotted arm E, provided with a pointer adapted to register upon a graduated scale upon one of the plates, and the hinged arm G. formed with pressure-plate G', and tuck-guide G2, substantially as and for 6o the purpose set forth.

5. In a tucking attachment for sewing-ma- In testimony whereof I aiix my signature in presence of two witnesses.

WILLIAM F. KIENTOFF. Titnessesz J. E. STEvENsoN, FRANK JOHNSON. 

